Hey everyone, I apologize for a long post, but I'm hoping some of the good people here can give me a hand. Samsung's tech support was pretty shitty so I'm turning here instead. I recently got a Samsung Captivate with Rogers and I've been having some trouble with my bluetooth. The phone is working fine with my bluetooth headset, but there are some problems when I try sending files from my computer to my phone. I can send files from my phone TO my computer, but whenever I try to send files FROM my computer, it pops up telling me "An invalid argument was supplied". Am I missing something simple here? Next thing is with the battery life... I have two of them and one ran for 2 days after charging straight out of the box; no apps, email, etc set up. After I set everything up though, it seems to be doing no better than ~20 hours. The other phone has always been ~20 hours at best. I've read about putting my phone onto 2G or GSM only to conserve battery life - is this a legit method? I appear to be using EDGE when I enable GSM/HSPA auto select and UMTS when I restrict it to GSM only. I've also read about using all-black backgrounds because of the AMOLED. Any good suggestions on which app to get? As for the battery issue, how harmful is it for me to recharge my phone before it drains to 10%? Thank you in advance!