Dungeon Tileset Broken

[WarLord2004]

Well i have no idea where this thread should of been started. I made a dungeon tileset and have it uploaded on a server and recently i been getting complaints about the color or the tileset changes into blue. Myself and a few other staffs have went to test it out but i see no problems the levels loads fine i see good quality of colors but the others have complaint there tileset turns into a alien blue. Is there any script that can fix this? It's weird how i can see the colors perfectly and they cannot they said the minute they logg in everything is ok but in 2-5 sec later it turns blue. Please help anyone this is getting annoying