I have a Sony Vaio PCV-RZ24G with upgraded XP2. Giga Pocket came with the unit. I upgraded the software to v5.0.04.05260, which is the most recent update for my unit per the Sony website. It worked fine back when I installed it (12/04)but now it does not record. Don't know why. I press the record button. The REC button shows in the TV section but nothing else happens. I hit the stop button & it tells me it's an invalid key. I open the Giga Pocket Explorer. A file shows with the date & time but when I click on it to play it it says damaged file. I read somewhere else that Registry Cleaners could have removed something important so I removed the existing Giga Pocket and re-installed. I would think that would re-install what's necessary but still same problem. Can anyway HELP??!! I can't determine if the two were coincidental my update of XP and not being able to record in gagapocket........as I stated the updates on the sony site do not help.