UW, Thanks. I'm a total ****head when it comes to computers.
Tex, If you are going after one of these make sure it has a VanVeen Kriedler motor. Pferebly water cooled or the big fin motor. The converted street Kriedlers are pretty puny. The VanVeens have decent porting. That one was an ex-GP frame and motor but from different time periods. The thing I loved about it was the tiny(but very effective) 4LS front brake. Great little bike. 1979 Irish road race champion. Always regretted selling it.