I've got two lamps out in different rows and column. They are diagonal from each other one row down one column over. Is this telling me anything. All other lights in both columns and rows are working. Are these seperate issues or could it be related?
They are both #44 bulbs. I've replaced the bulbs and the wires look ok. I've checked the connectors on the board and they also look ok. I tried reseating both connectors on the board for the inserts with the power on to see if they flickered. They didn't but all the other inserts went out and back on as they should.

Thanks Robertmee, I'll replace both diodes tonight. The leads looked like they were attached well so they may be bad. Thanks for the help. I'll let you know if it works.

Yup. It was a bad diode on both. I never had one go bad so I didn't expect it. Thanks for the help Robertmee