I have a G1 with T-moblie that has recently developed a problem. I receive my gmail mail on there fine and I can delete a message with no problems. The new message count in the inbox will change but later when I look it says I have 2 new messages. If I look at gmail on my phone there are no new messages. However, If I goto gmail on my computer some time later (well enough time for it to sync), then I have two new messages that were the two I deleted from my phone but are still showing as unread on the computer gmail.

I don't think there is a setting to turn this feature on or off but it's a little annoying since I have to delete them on the G1 and on the Gmail too. Thanks for the help.