Blackboard has done extensive testing of various browsers, and has "certified" the use specific combinations of browsers and Operating Systems

Browser Compatibility with Blackboard 6.3
                      Windows                          Mac
      Windows 2000 (XP/ME/98) Windows
XP		 10.2 10.3 10.4
INTERNET EXPLORER 5.2   N/A OK Certi-fied N/A
5.5 Certified OK N/A N/A N/A
6.0 Certified Certi-
fied		 N/A N/A N/A
NETSCAPE AND
MOZILLA BROWSERS 		NS 4.78 OK OK OK OK N/A
NS 7.1 OK Certi-
fied		 OK OK N/A
Firefox 1.0.X X Certi-
fied		 OK OK N/A
APPLE SAFARI 1.0 X X OK N/A N/A
1.1 X X N/A OK N/A
1.2 X X N/A Certi-fied N/A
Other Browsers (no data, but risky for Blackboard)     N/A N/A N/A N/A

Certified - means that Blackboard has fully tested and supports this browser. (This would be your safest Browser choice if available for your particular Operating System. Blackboard hasn't yet tested a browser for the Macintosh 10.4 operating system but this shouldn't discourage people from using any browser that was certified or worked OK with the previous OS version.)

OK - Blackboard has found no incompatibilities in key application areas but not yet fully certified.

N/A - No information available. Use at your own risk.