I can confirm the same problem in Acer Aspire 4551-4315.
The system is up-to-date (Dec 31, 2010) and I'm using the maverick (amd64).
I can confirm the same problem in Acer Aspire 4551-4315.
The system is up-to-date (Dec 31, 2010) and I'm using the maverick (amd64).