Comment 11 for bug 475428

I have a Gateway LT3114 notebook with an AMD64 processor and ATI graphics. I am experiencing this same corrupted fonts bug. I actually have two LT3114s, and both of them do the same thing, and it does not seem to matter which release I try. I was running 10.04 LTS, but decided to try 11.04 in one of my LT3114s, but there was no difference. I also tried 10.10, and saw the same thing.

This randomly corrupted font thing can happen while I am viewing a web page. I seems to happen a few seconds after the page initially loads, which makes me think this is somehow provoked by something a script in the page is doing. Some web pages are almost guaranteed to clobber the font memory.

However, I can also clobber the font memory simply by scrolling too quickly through a PDF document.

Is there some way in which I can replace the defective driver that comes with the Ubuntu distro with one that does not cause this font corruption? I am something of a newbie, and would like to have a step by step procedure I can follow to remedy this situation, because power cycling my machines frequently just to be able to read the screen is getting old. I have tried to be an Ubuntu evangelist in my company, but this is a "Show Stopper" that has caused me no end of grief. And needless to say, I will not be able to convince my co-workers to abandon MicroSloth in favor of Ubuntu with stuff like this going on in the software that is reputed to "just work" making my own work difficult.