SAS的奇怪bug，求大佬帮帮忙！

SAS新手，执行SAS程序时总是遇到问题，例如我运行下面的代码：
data a;
input x;
cards;
5.3
5.3
5.2
2.1
3.0
3.3
2.8
3.4
2.3
4.8
;
proc means data=a;
var x;
run;
然后就会出现这样的log：
18 data a;
19 input x;
20 cards;
NOTE: The data set WORK.A has 10 observations and 1 variables.
ERROR: Rename of temporary member for WORK.A.DATA failed.
File may be found in C:\Program Files\SAS Institute\SAS\V8\TEMP\SAS Temporary Files\_TD11628.
NOTE: DATA statement used:
real time 0.01 seconds
cpu time 0.01 seconds
31 ;
32 proc means data=a;
ERROR: File WORK.A.DATA does not exist.
33 var x;
ERROR: No data set open to look up variables.
34 run;
NOTE: The SAS System stopped processing this step because of errors.
NOTE: PROCEDURE MEANS used:
real time 0.00 seconds
cpu time 0.00 seconds
然而在同学的电脑上就完全正常，请问这个是什么原因？