Gordon May, software general manager at Computer 2000, left the distributor last week in what was seen in a surprise departure.
May left C2000 on 18 February after overseeing the launch of the company's Windows 2000 incentive scheme the previous day. He took up the role in January 1999.
His unexpected departure comes just over a month after deputy managing director Andy Gass, jumped ship for Sage/Tetra.
Julian Klein, deputy managing director at C2000, refused to comment on why May had left or where he had gone. Klein confirmed that May's replacement will be announced this week.
Klein said he was in temporary charge of the software division and claimed it should "continue to go from strength to strength". He insisted that he did not expect the company's software plans to be "negatively affected" by the loss of May.
Adele Knox-Roberts, distribution sales manager at Microsoft, said his departure was "just one of those things".
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