USB testing ex_usb_serial.c with Proteus

[jmorfeos]

Hi, I'm for a couple of days trying to make my USB project with several Internet examples like PicUSB from J1M and I have always the same problem. When I try the hex file with these examples in Proteus it works fine but when I compile the project myself it doesn't work.
Finally I tried this example ex_usb_serial.c from CCS with PCWHD 4.093 and Proteus 7.4 SP3 for simulation. I took the c file and copied it to a new folder and make a new project with this file, changed __USB_PIC_EXPLORER16__ to 0 then compiled. I try the hex and COF file and it doesn't work. I make a copy of the result with the virtual terminal to see where it stops here.
All three leds are ON but I see the program step by step and he turns it off but the simulator don't do it!!!
The circuit is here.
Please help!!!
I try a lot of usb_cdc.h and other libraries changes and it's still not working.
What could it be??? Could it be a change in the library of new 4 CCS version??
Sorry for my spanglish

I've forget, here i put the compiler output with some warnings and fuses...
Thanks

[jmorfeos]

I made a test with CCS version 3.249 and it works fine!!! What could be the diferrence between versions??? Please somebody Help !!!!

[gmua]