I installed RC5 on sles10sp2 and none of the ofed modules would load due to symbol mismatches. For instance, ib_core won't load and this is logged: May 11 13:32:13 rac4 kernel: ib_core: Unknown symbol init_mnt_writers I backed up to RC4 and things work ok. Something bad happened to RC5. Anybody else seeing this? Steve.