I decided to take the leap, and I'm starting to regret it

please help
I've ran across several issues, but I'll list the first one only:
Running Windows XP
3 hard drives -
80GB - Windows default
200GB - Linux
500GB - files and documents
Downloaded OpenSuse 11.2
Installation appeared to complete easy enough.
Rebooted a couple of times and found I can select either Windows or Linux, so everything is good.
Removed the CD from the drive. Rebooted and I get the following errors:
Grub loading state1.5
Error 22
System won't boot unless the CD is in the Drive.
Is this normal?
How can I return it to just boot straight to Windows?
What problems will I have if I decided to get rid of SUSE and install Ubuntu?
thanks