It's interesting to hear of the same problem we have w/ our Meade 750 mount. Dr. Clay suspects it's the logic board, it can be rebuilt new w/ QUALITY components for $325 The Service Fee for the mount only is $495; a complete replacement/rebuild of electronics is $325 with no additional charge for labor to remove, then install, calibrate and test the new system once completed. All minor repairs that might be needed are included in the Supercharge fee; major parts replacements that might be required are at my cost only, and again no charge to install. We'll hopefully be sending this off in the fall when one of our members that lives in AR will drive it to Dr. Clay. We use very few Meade scopes out here, very very poor service and support. Aloha Rob