Cubase will not open after using Wavelab 8

As described ,every time i open cubase after using wavelab 8 it takes at least 20 mins to open .
Anyone else having this issue ?

No issues here. What is it doing for those 20 minutes?

No problems here either, with both programs on the same W7x64 machine. Do you perhaps have different default sample rates set in each program? Try setting both programs to use the same default sample rate and bit depth. Which RME interface are you using?