welcome to the forum, you say you have a gal reg of 2000,but you have posted in the mk3 section of the forum.can you please confirm what version you have so i can move it to the correct section,cheers. did the window jam a tad?if so if you are releasing tension then i would suspect the spool has overrun?this require removal of the motor and regulator and removing the motor etc CAREFULLY then grow another pair of hands to keep it all in :rolleyes: and inspect the plastic spool,if the thread within is threaded then it will always happen,so you will either need a new/2nd hand regulator or purchase a repair kit from ebay.