I've had Speedplay pedals on my bike and I love them. However, I tried to lube them a week or so ago and BOTH of the screws are apparently stripped - they won't back out at all - they just keep turning but I can't get them out. I know I was very very careful not to overtighten them the last time so I have no idea how they got stripped.

What can I do? Is there some trick I can use to get the screws out and then replace them? Or do I have to replace the pedals???