For me the elevator works but no TK at the top. Not sure if it's because I've been using the time cheats or not. But case 5-2 doesn't start for me.
*edit - also noticed I do not get the case file*
[Edited by edes01, 10/7/2010 10:47:13 PM]
googled thread, my solution as follows
had same problem, didnt get the case file 5-2 after case 5-1 stake out ... elevator closed or no TK on hotel roof ...
i watched youtube walktrough and after scene 5-1 on roof it should be night!
so i tried with trainer to increase clock hours (think it was only one hour) right after case 5-1 scene on roof and the case file 5-2 started and everything worked. (increase time after leaving roof didnt work)