i have run lightroom 5 for a few months with no issues. Last week i installed a trial version of photoshop cc. Today i tried to use lightroom for the 1st time since installing the trial version of Ps cc and lightroom wont work. All i get is (not respondin

My problem is this..

lightroom 5 (latest updates installed) had this program for months working fine.

Last week I installed a trial version of photoshop cc which works a treat.

Today I tried to open lightroom 5 and it freezes. I get the dredded  (not responding) warning and then my only option is to close it down. 

Is there a conflict between cc and L5?  can this be fixed?