[求助]各位帮忙,请教一个问题

yufengalan

请教一个问题:
在安装fluent6.1.22时,出现下面的错误信息,是什么原因:
Loading "D:\fluent.inc\fluent6.1.22\lib\fl_s117.dmp"
Done.
System clock has been set back
Feature:       fluent
License path:  D:\fluent.inc\license\license.dat
FLEXlm error:  -88,309
For further information, refer to the FLEXlm End User Manual,
available at "www.globetrotter.com".

Hit return to exit.

heiyeliuxing

System clock has been set back系统时间设置错误