Hi Len, I have the Optoma HD72 and it needs a lamp driver. I am in Worcester Mass but anywhere close would be nice. You can googlemap me. I know I could bring it to a local b+m but I don't have alot of faith that they work on many PJ's.
Optoma can be a problem. Some parts they sell, some they don't, and they will not provide tech support. Call around and see if anyone works on them locally, but don't be surprised if no one has any experience with them. Call Optoma and see if you can get a quote for repair.