Thier was a similar issue faced  while recording and 
playing back the script.The scenario is described as below.

i have a windows based application ..i recorded an event 
when where-in the application adds a contact to its contact 
list

now the issue that i faced was after recording an event of 
adding manually adding contact in the aplliction.i tried to 
play back.But thier was a strange result. I Tool could 
identify the Appliction but when it tries to execute the 
recorded script for adding contact its fails.Infact the 
same operation was successfully completed by the tool in 
all previous version of the client.

Later after geting application design from the develpment 
team it was known that actualy the form that load in 
runtime ..so the respository value of the form did not 
match with its run time value.Hence the tool fails at that 
particular instance

guess the same scenario is depicted in the code mentioned 
above.