Specs: WinXP Sp3, old single-core AthlonXp 2800+, 1500Gb ram, geforceFx 5200, 8Mbit connection, Firefox 19.0.2 (newer versions seem bad for memory) I've tested this even without other running programs, scanned for virus\malware, cleaned with CCleaner, checked running tasks\services and such. When I had Flash Player 10.3 I could see 480p videos on Youtube without any problem (720p, instead, is difficult for the old card). After 11.X in this year, the issues started: at early versions I got slowdowns\skips at 480p, then 360p, now with 11.8 even at 240p??? (but videos play fine in Vlc) I fed up, downloaded and downgraded back to 10.3 and.. even that skips at 360p.. WTF is happening, why can't I see the same content on the same computer with the same settings anymore?? Is Adobe messing badly with Flash Player? Does anyone have this problem with an old pc and Youtube? P.S: changing computer is an obvious solution, but I can't afford that right now.