I can confirm to have the same exact problem as described by feroxy.
Using lucid 64bits fully updated here on a hp laptop.

It just takes a few seconds on a youtube video to trigger the problem.
With a media player it usually last longer but it crash anyway. 

i though my sound card might be dieing but on Vista on the same machine there's no problem.

This is what i find in my logs:

Apr 26 20:22:40 hp pulseaudio[1767]: alsa-util.c: snd_pcm_delay() returned a value that is exceptionally large: -6377097072356232136 bytes (-326791807483 ms).
Apr 26 20:22:40 hp pulseaudio[1767]: alsa-util.c: Most likely this is a bug in the ALSA driver 'snd_hda_intel'. Please report this issue to the ALSA developers.
Apr 26 20:22:40 hp pulseaudio[1767]: alsa-util.c: snd_pcm_dump():
Apr 26 20:22:40 hp pulseaudio[1767]: alsa-util.c: Soft volume PCM
Apr 26 20:22:40 hp pulseaudio[1767]: alsa-util.c: Control: PCM Playback Volume
Apr 26 20:22:40 hp pulseaudio[1767]: alsa-util.c: min_dB: -51
Apr 26 20:22:40 hp pulseaudio[1767]: alsa-util.c: max_dB: 0
Apr 26 20:22:40 hp pulseaudio[1767]: alsa-util.c: resolution: 256
Apr 26 20:22:40 hp pulseaudio[1767]: alsa-util.c: Its setup is:
Apr 26 20:22:40 hp pulseaudio[1767]: alsa-util.c:   stream       : PLAYBACK
Apr 26 20:22:40 hp pulseaudio[1767]: alsa-util.c:   access       : MMAP_INTERLEAVED
Apr 26 20:22:40 hp pulseaudio[1767]: alsa-util.c:   format       : S16_LE
Apr 26 20:22:40 hp pulseaudio[1767]: alsa-util.c:   subformat    : STD
Apr 26 20:22:40 hp pulseaudio[1767]: alsa-util.c:   channels     : 2
Apr 26 20:22:40 hp pulseaudio[1767]: alsa-util.c:   rate         : 44100
Apr 26 20:22:40 hp pulseaudio[1767]: alsa-util.c:   exact rate   : 44100 (44100/1)
Apr 26 20:22:40 hp pulseaudio[1767]: alsa-util.c:   msbits       : 16
Apr 26 20:22:40 hp pulseaudio[1767]: alsa-util.c:   buffer_size  : 88192
Apr 26 20:22:40 hp pulseaudio[1767]: alsa-util.c:   period_size  : 44096
Apr 26 20:22:40 hp pulseaudio[1767]: alsa-util.c:   period_time  : 999909
Apr 26 20:22:40 hp pulseaudio[1767]: alsa-util.c:   tstamp_mode  : ENABLE
Apr 26 20:22:40 hp pulseaudio[1767]: alsa-util.c:   period_step  : 1
Apr 26 20:22:40 hp pulseaudio[1767]: alsa-util.c:   avail_min    : 87752
Apr 26 20:22:40 hp pulseaudio[1767]: alsa-util.c:   period_event : 0
Apr 26 20:22:40 hp pulseaudio[1767]: alsa-util.c:   start_threshold  : -1
Apr 26 20:22:40 hp pulseaudio[1767]: alsa-util.c:   stop_threshold   : 6205960286516543488
Apr 26 20:22:40 hp pulseaudio[1767]: alsa-util.c:   silence_threshold: 0
Apr 26 20:22:40 hp pulseaudio[1767]: alsa-util.c:   silence_size : 0
Apr 26 20:22:40 hp pulseaudio[1767]: alsa-util.c:   boundary     : 6205960286516543488
Apr 26 20:22:40 hp pulseaudio[1767]: alsa-util.c: Slave: Hardware PCM card 0 'HDA Intel' device 0 subdevice 0
Apr 26 20:22:40 hp pulseaudio[1767]: alsa-util.c: Its setup is:
Apr 26 20:22:40 hp pulseaudio[1767]: alsa-util.c:   stream       : PLAYBACK
Apr 26 20:22:40 hp pulseaudio[1767]: alsa-util.c:   access       : MMAP_INTERLEAVED
Apr 26 20:22:40 hp pulseaudio[1767]: alsa-util.c:   format       : S16_LE
Apr 26 20:22:40 hp pulseaudio[1767]: alsa-util.c:   subformat    : STD
Apr 26 20:22:40 hp pulseaudio[1767]: alsa-util.c:   channels     : 2
Apr 26 20:22:40 hp pulseaudio[1767]: alsa-util.c:   rate         : 44100
Apr 26 20:22:40 hp pulseaudio[1767]: alsa-util.c:   exact rate   : 44100 (44100/1)
Apr 26 20:22:40 hp pulseaudio[1767]: alsa-util.c:   msbits       : 16
Apr 26 20:22:40 hp pulseaudio[1767]: alsa-util.c:   buffer_size  : 88192
Apr 26 20:22:40 hp pulseaudio[1767]: alsa-util.c:   period_size  : 44096
Apr 26 20:22:40 hp pulseaudio[1767]: alsa-util.c:   period_time  : 999909
Apr 26 20:22:40 hp pulseaudio[1767]: alsa-util.c:   tstamp_mode  : ENABLE
Apr 26 20:22:40 hp pulseaudio[1767]: alsa-util.c:   period_step  : 1
Apr 26 20:22:40 hp pulseaudio[1767]: alsa-util.c:   avail_min    : 87752
Apr 26 20:22:40 hp pulseaudio[1767]: alsa-util.c:   period_event : 0
Apr 26 20:22:40 hp pulseaudio[1767]: alsa-util.c:   start_threshold  : -1
Apr 26 20:22:40 hp pulseaudio[1767]: alsa-util.c:   stop_threshold   : 6205960286516543488
Apr 26 20:22:40 hp pulseaudio[1767]: alsa-util.c:   silence_threshold: 0
Apr 26 20:22:40 hp pulseaudio[1767]: alsa-util.c:   silence_size : 0
Apr 26 20:22:40 hp pulseaudio[1767]: alsa-util.c:   boundary     : 6205960286516543488
Apr 26 20:22:40 hp pulseaudio[1767]: alsa-util.c:   appl_ptr     : 1949678
Apr 26 20:22:40 hp pulseaudio[1767]: alsa-util.c:   hw_ptr       : 1852128