curtain rail

I'm renovating a flat and I've got curtain tracks in the main living room with only a couple of gliders on them. I want to get new gliders on the track but the glider end pieces don't seem easy to remove. They don't seem to rotate off and, if they have a screw holding them in place, it must be...

I have installed a curtain track but I see a small gap where tracks are spliced - is it possible to fill the gap somehow ? This causes my pulley to not glide smoothly

Hi, I've got some newly-fitted 12.5mm plasterboard and want to hang a couple of curtain rails up. The rails have three fixing points on each side. The poles are only around a metre long, each. The hollow anchors I bought say they're for a minimum of 8mm thickness. (B&Q M4 32mm). My plasterboard...