Could you try running the following program?
ACLS:XSCREEN 2,256,2
DISPLAY 1
SPSET 0,0:SPCOL 0
WHILE TRUE
SPOFS 0,RND(304),RND(224),0
WHILE TRUE
VSYNC 1,TOUCH OUT TT,TX,TY
IF SPHITRC(TX,TY,1,1)>=0 && TX==1 THEN
BEEP 5:BREAK
ENDIF
WEND
WEND
0そうだね 未プレイ