If I read an email on my blackberry, it doesnt show up as "read" the next time I check my mail on my computer. Is there a way to change this? Also, everytime I send an outgoing email, I recieve a copy of it in my inbox and this is annoying. Can either of these problems I'm having be corrected?

You can create a filter to not forward mail from your gmail account to your BB and that will take care of one of your problems.

Google Mobile

or you can try this. I heard about it but havent tried it myself