franztini,
When you update the software you can't just load your previous file. You need to start another one from scratch using the updated software.
I also have the Denon 4308 rcvr. Try using the "if/else" statements to track the TV/Rcvr power state. Start w/ the System Off Macro and creating a UI varible "System Off".
Example:(System Off)
Jump-wait while macro
@ (DVD/Pwr Off)
Delay .1
@ (Cable/Pwr Off)
Delay .1
@ (Rcvr/Pwr Off)
Delay .1
@ (TV/Pwr Off)
UI Var (System Off, True)
Jump-Watch

Example:(Watch Cable)
Jump-wait while macro
IF-(UI Var (System Off),True)
@ (Rcvr/Pwr On)
Dalay .1
@ (TV/Pwr On)
Delay 5.0
UI Var (System Off, False)
Else-Empty(don't Program)
@ (Cable/Pwr On)
Delay .1
@ (Rcvr/Cable)
Jump-Cable

Try this for each video source you have.

Note: This will keep track off the TV/Rcvr states and only send them when needed. I'm guessing you have discrete pwr codes. You will need addition varibles for the audio sources. Remember this is just an Example. Please refer to the help file for more details.