One problem I've noticed in 5.1 is they've removed support for my NIC . I've gone back to 4.8 for now (had to rebuild box due to security breach). I hope they fix this in the 5.0-5.1 production release
Have you check out their http://www.freebsd.org/releases/5.1R...are-i386.html? or you might need to send your NIC problem to http://www.freebsd.org/support.html and hopely will be fix on 5.2 stable one.

Originally posted here by lumpyporridge
Have ya built world yet sweet angel? I some people are havin probs with it . It could be a good excuse to start over so you can take advantage of the new ufs2 file system. I put a clean install on my goof around drive and its good . I am eagerly awaiting stable, which should be out fairly soon ,around 5.2 according to the plans.
Yes I had buildworld, I've done mergemaster , I don't have have problem with builworld so far..and I am still play around with it, look like FreeBSD 5.1 have alot of changes, I haven't try new ufs file system yet..but I will try that when I have time..thanks for that tip

cheerrs