mhond,
have you tried searching for the solution using the search function? your problem is a pretty common one. it was one of my very first problems with the N900. search and you will find the answer. kahit dun sa thread ni sir topet sa symb napag-usapan na rin yan.
plus, if you have successfully flashed your phone, you should be able to use your camera again. so it's either something was wrong with the way you flashed your unit or (wag naman sana) you have a hardware problem. sundan mo na lang yung instructions ni sir topet sa kabila for flashing para mas madali.
for a 5 year htc winmo user, this is a huge change for me as i'm not familliar with linux. i think i did a good decision to move away from winmo till they redeem themselves on winmo 7 because 6.1 is buggy....i just wished there's a slingbox app or skyfire / silverlight support so i can watch live stream on hayag.com LOL
dont use silverlight or even depend / have interest on it. im telling you, its a very crappy app from microsoft that tries to compete with adobe flash player, and all it does is make errors alot more than doing its job. ill be happy to castrate my balls if im wrong. im a software tech from microsoft and this silverlight bullcrap i try to fix is hell.