Vista problems with Outlook?

I have Vista at home, and have no problems with it at all, but my coworker recently bought a computer with Vista and after two weeks of working fine, now cannot send, reply, or forward an email from Outlook. The emails just linger in the outbox, and there's one in the outbox that can't be deleted and has been there for two weeks now. Has anyone else had similar problems? They have been to the Microsoft website where they have provided a link for a repair, but it won't download.

Vista problems with Outlook?malware

Open outlook, click on tools, option, send, put a check in each little window.

Vista problems with Outlook?norton 360

Depending on what version of Outlook they are trying to use you might run into problems with Vista. I know that I had all kinds of issues with Outlook from Office 2000 when I installed it on Vista Home Premium. It would seem to work then it wouldn't. I ended up switching to the Microsoft mail program that comes with Vista. It works okay and I don't get those inconsistent problems with it.
I would call the manufactuer or computer place but if he/she has virus protection, so virus protection programs block e-amil activity, this happened to me once, so check that out and see if you can disable it for an e-mail section, if you dont understand this, e-mail me.