I'm not much of a PSP user.. i've had mine for a while now but i mostly use it to surf on the internet but last couple of days i've been playing a lot.. I've a 2000 slim version and my firmware is the m33 v6.20.. i installed recently an emulator for PSX(ps1) games but it didn't worked rather it made my console to go slower at times and mostly when i press select.. it is not a firmware problem or a brickwall problem.. anybody has an idea?