Mouse not working right

[DerekR]

Mouse fails to move window when trying to click and drag.

Mabe in relation to this i also cannot select group of files from desktop into another folder
ie Documents, Music, Video the OS will crash or could take a minute to come back from a locked up state.

Mouse mabe in relation again will select and de-select buttons and or text at random.

Specs......... Dell Inspiron 8600
                   Pentiume M 1.4
                   512 MB Ram
                   Nvidia 5200go
                   touchpad and (eraser)joystick mouse

All of the problems I have encountered are with Ubuntu 8.04(Hardy Heron) both when i upgraded from 7.10(Gusty) and when I did a freash install...and when i Downloaded the full Cd it was different then the Download of the upgrade... all problems mentioned above are only with Ubuntu 8.04(Hardy Heron) and non of the problems existed with 7.10(Gusty)

[nickhtp (nick1977)]

Top-level question: Is this issue p-DoS related? ( See permanent Denial-of-Service thread(s) )

Questions by order of scale and relevancy:

>> Mouse fails to move window when trying to click and drag.

(A) Is the mouse communicating with /dev/psaux or /dev/usbdev*?

>> Mabe in relation to this i also cannot select group of files from desktop into another folder

(B) If A is true, then are all relevant GNOME, KDE3-4, XFCE4 or XWindows shared libraries and all other logistics- and operation-required files aware that that mouse is communicating with the device files previously mentioned?

>> Mouse mabe in relation again will select and de-select buttons and or text at random.

(C) If A and B are true, then are both the XHTML-compliant Web browser and machine copy/paste histories functioning properly?