US STOCKS-Wall St up on robust retail data but Greece weighs
* IMF says major differences' remain with Greece
* May retail sales rise 1.2 pct vs est 1.1 pct
* Citrix jumps after investor sends letter to board
* Indexes up: Dow 0.3 pct, S&P 0.2 pct, Nasdaq 0.08 pct (Updates to early afternoon)
By Tanya Agrawal
June 11 (Reuters) - U.S. stocks were higher in afternoon trading on Thursday, helped by strong retail sales data, but gains were limited by news that the International Monetary Fund had broken off debt talks with Greece.
The Dow Industrial average touched its highest in six trading days earlier in the session after data showed that retail sales surged in May, the latest sign that a recovery in the U.S. economy was finally gathering steam.
Talks between Greece and its lenders have been deadlocked over the country's rejection of demands for reforms as conditions for releasing frozen bailout funds.
The IMF said its delegation had halted negotiations in Brussels and flown home because of major differences with Athens. Continuación...