why won't the web part of my MATC e-mail open?
I'm not sure from your question if you've been able to log in, but can't open messages, or if you can't log in. If you are not able to log in, it may be that your password has expired. Here is a link to the GMail support page in the MATC Website: http://www.matc.edu/techelp/gmail.cfm
If this doesn't answer your question, it would be best if you talk to the Tech Helpdesk at 414-297-6541. The desk is closed for the night, but will be staffed starting at 7:30am.
I hope this helps.