Had problems a few months ago with my tx2000(tx2110us) too. I bought it june 2008 and started acting weird feb 2009. About 2 month before my warranty ended, I encountered blue screens several times in a day right after booting. I brought it to HP service center numerous times because it seemed like they were not able to isolate the real cause of the problem. They said they replaced the memory on my first visit, harddisk next, then bluetooth, and lastly the motherboard. HP service center had my laptop for more than a month and not able to totally fix it. They managed to make it work but the operation became so slow and would still have blue screens. I waited for them to replace it with a new unit but it never happened. I had no choice but to get it so I could at least make use of it for its last days. Now, 5 months later, my laptop is stuck in welcome screen with a few important files trapped in it. I can't do a factory reset unless I could make a copy of those files. I WILL NEVER BUY AN HP LAPTOP AGAIN. Its just like buying a piece of junk worth $1000+.